US20140029970A1 - Printer internal climate control - Google Patents
Printer internal climate control Download PDFInfo
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- US20140029970A1 US20140029970A1 US14/110,395 US201114110395A US2014029970A1 US 20140029970 A1 US20140029970 A1 US 20140029970A1 US 201114110395 A US201114110395 A US 201114110395A US 2014029970 A1 US2014029970 A1 US 2014029970A1
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- air
- heat exchanger
- printer
- flow path
- printing area
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/20—Humidity or temperature control also ozone evacuation; Internal apparatus environment control
- G03G21/206—Conducting air through the machine, e.g. for cooling, filtering, removing gases like ozone
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/20—Humidity or temperature control also ozone evacuation; Internal apparatus environment control
- G03G21/203—Humidity
Definitions
- Temperature and humidity can affect the performance of commercial and industrial printers. It may be desirable in some printing environments to actively control the temperature and humidity in the printer to improve print quality and to prolong the life of some of the printer components.
- FIG. 1 is a block diagram illustrating one example of a new printer internal climate control system.
- FIG. 2 illustrates one type of printer in which examples of the new climate control system may be implemented
- FIG. 3 illustrates one example of a climate control system such as might be used in the printer of FIGS. 2 .
- FIG. 4 is a block diagram illustrating one example for the bypass in the climate control systems shown in FIGS. 1 and 3 .
- FIG. 5 is a block diagram illustrating one example for the humidifier in the climate control systems shown in FIGS. 1 and 3 .
- a new climate control system for digital printing presses and other printers has been developed to help maintain desirable temperature and humidity conditions inside the printer while reducing the level of airborne contaminants in the printer environment.
- warmer air from the printing area is treated to remove environmental contaminants by cooling the air to condense out contaminants in the incoming air stream.
- the treated air is reheated to the desired temperature before returning to the printing area.
- the system utilizes an economizer that exchanges heat between the warmer, untreated incoming air and the cooler, treated outgoing air to simultaneously pre-cool the untreated air and reheat the treated air, thus reducing the energy needed to clean and reheat the air.
- a bypass allows some of the cool, treated air to be diverted around the economizer to help regulate the temperature of the outgoing air.
- the system also includes a humidifier to selectively introduce clean water into the treated air stream as needed to maintain the desired humidity of the air returning to the printing area.
- “Cleaner” air and “dirtier” air are used in this document to describe relatively lesser or greater amounts of a contaminant in the air.
- climate control system 10 includes a first, economizer heat exchanger 12 , a second heat exchanger 14 , a humidifier 16 and a bypass 18 .
- Economizer heat exchanger 12 which exchanges heat between the warmer incoming air and the cooler outgoing air without mixing the two air streams, is also sometimes referred to in this document as an air-to-air heat exchanger.
- the components of system 10 are arranged along an air flow path 20 extending from an intake 22 for receiving warmer, dirtier air from a printing area of the printer to an exhaust 24 for returning cooler, cleaner air to the printing area.
- climate control system 10 also includes a fan 26 for moving air along flow path 20 .
- the warmer, dirtier incoming air passes through first heat exchanger 12 where it is cooled by cooler, cleaner outgoing air.
- the now cooler but still untreated incoming air then passes through second heat exchanger 14 where it is cooled to a predetermined dew point temperature corresponding to a desired level of contaminants remaining in the air that will be returned to the printing area.
- VOCs volatile organic compounds
- VOC contaminants may be removed by cooling the air in second heat exchanger 14 sufficiently to condense contaminant vapors.
- the dew point temperature selected to reduce contaminant levels will also establish the maximum level of humidity for the air leaving second heat exchanger 14 .
- the liquid condensate is removed from second heat exchanger 14 for disposal or recycling.
- the cool, cleaner air from second heat exchanger 14 moves past or through humidifier 16 .
- Humidifier 16 adds water selectively, as needed, to increase the humidity in the outgoing air stream to the desired level.
- Outgoing air passes through air-to-air first heat exchanger 12 where it is heated by the warmer incoming air.
- Some of the cool, treated air is diverted selectively past first heat exchanger 12 though bypass 18 , as needed, to adjust the temperature of the return air to the desired level.
- climate control system 10 may also include a filter or other suitable de-mister 28 for removing liquid droplets from the air downstream from second heat exchanger 14 .
- the air stream downstream from second heat exchanger 14 may contain a fog or mist of residual contaminants. Under these operating conditions, it may be desirable to include a de-mister 28 to help prevent any such residual contaminant droplets from returning to the printing area.
- FIG. 2 illustrates one type of a printer 30 in which examples of the new climate control system may be implemented.
- FIG. 3 illustrates one example of a climate control system 10 for use in printer 10 .
- Printer 30 shown in FIG. 2 uses a liquid electro-photographic (LEP) printing process to form images on paper or other print media.
- LEP printer 30 is one example of a printer that can benefit from the use of a climate control system 10 ( FIG. 3 ) to lower VOC levels and to help maintain the desired temperature and humidity in the printer's internal operating environment.
- LEP printer 30 is one example of a printer that can benefit from the use of a climate control system 10 ( FIG. 3 ) to lower VOC levels and to help maintain the desired temperature and humidity in the printer's internal operating environment.
- printer 30 includes a media feed unit 32 with multiple media input trays 34 , 36 , and 38 . Sheets of a print medium are fed from stacks 34 , 36 , and 38 to a printing area 40 in the print engine 42 from which they emerge as printed sheets conveyed to an output stacker 44 . Although printing area 40 and print engine 42 are enclosed during printing operations, the forward part of the printer enclosure is omitted in FIG. 2 to show printing area 40 and print engine 42 .
- Print engine 42 includes a charging device 46 for charging the surface of a photoconductive drum 48 .
- a photo imaging device 50 exposes selected areas of drum 48 to light in the pattern of the desired printed image.
- a thin layer of liquid toner is applied to the patterned drum 48 through a series of developer units 52 to develop the latent image on drum 48 into a toner image.
- the toner image is transferred from drum 48 to the outside surface of an intermediate transfer member 54 .
- the toner image is then transferred to the print medium as the print medium passes through a nip between intermediate transfer member 54 and a pressure roller 56 , VOCs generated as toner carrier fluid evaporates off intermediate transfer member 54 are evacuated to a cooling cabinet 58 housing climate control system 10 at the back of printer 30 .
- hot, “dirty” air from printing area 40 ( FIG. 2 ) is evacuated to climate control system 10 in cabinet 58 through intake 22 , for example at the urging of a suction blower 26 .
- Air with a comparatively high concentration of VOCs from printing area 40 may reach intake 22 at about 42° C., for example.
- the warmer, untreated incoming air passes through air-to-air heat exchanger 12 to heat the cooler, treated outgoing air as described above with reference to FIG. 1 .
- the warmer incoming air is cooled as it passes through first heat exchanger 12 , for example to about 33° C.
- the now cooler but still untreated air then passes through second heat exchanger 14 where it is cooled to a predetermined dew point temperature corresponding to a desired level of VOCs remaining in the air that will be returned to print engine 42 ( FIG. 2 ).
- the level of VOCs may be reduced to about 200 ppm by cooling the incoming air to about 10° C. at second heat exchanger 14 .
- the liquid condensate containing water and toner carrier fluid that collects in second heat exchanger 14 is removed for recycling or disposal.
- an optional de-misting filter 28 is included in the flow path downstream from second heat exchanger 14 to remove droplets that may form as fog in the cool air exiting second heat exchanger 14 .
- de-mister 28 it is expected that de-mister 28 will be located as far as possible from second heat exchanger 14 . Any droplets of carrier fluid remaining in the air flow downstream from second heat exchanger 14 tend to stick to one another and become larger, and thus easier to filter, farther from heat exchanger 14 .
- the cool air from second heat exchanger 14 moves past a humidifier 16 to first heat exchanger 12 .
- Humidifier 16 and heat exchanger 12 control the humidity and temperature of the air returning to print engine 42 through exhaust 24 .
- Humidifier 16 adds water selectively, as needed, to increase the humidity in the outgoing air stream to the desired level.
- Outgoing air then passes through air-to-air first heat exchanger 12 where it is heated by the warmer incoming air.
- Some of the cool, treated air is diverted selectively past first heat exchanger 12 though bypass 18 , as needed, to adjust the temperature of the return air to the desired level,
- the outgoing air at exhaust 24 should have a relative humidity of about 38% at a temperature of about 23° C. This temperature and humidity condition at climate control system exhaust 24 allows the air to reach printing area 40 ( FIG. 2 ) at the desired operating conditions, for example about 30% relative humidity at about 27° C.
- FIG. 4 is a block diagram illustrating one example for bypass 18 in system 10 .
- bypass 18 includes an air flow conduit 60 bypassing heat exchanger 12 , a flow control valve 62 , and a thermostat or other suitable control mechanism 64 operatively connected between the outgoing air flow and flow control valve 62 .
- Thermostat 64 automatically adjusts the position of valve 62 based on the temperature of the outgoing air to control the flow of cool air through bypass conduit 60 , and maintain the desired temperature of air returning to the print engine.
- FIG. 5 is a block diagram illustrating one example for humidifier 16 in system 10 .
- humidifier 16 includes an atomizer 66 connected to a water reservoir 68 and a source of pressurized air 70 .
- Humidifier 16 also includes an air flow control valve 72 and a humidistat or other suitable control mechanism 74 operatively connected between the outgoing air flow and flow control valve 72 .
- Humidistat 74 automatically adjusts the position of valve 72 based on the humidity of the outgoing air to control the amount of water sprayed into the flow of air through second heat exchanger 14 , and maintain the desired humidity of air returning to the print engine.
- Locating humidifier 16 upstream from heat exchanger 12 as shown in FIG. 3 may be desirable in some printing environments to help ensure the water droplets will vaporize fully into the outgoing air stream, and thus minimize the risk of any water droplets reaching the print engine. However, in other printing environments it may be suitable to locate humidifier 16 downstream from heat exchanger 12 .
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- Drying Of Gases (AREA)
Abstract
Description
- Temperature and humidity can affect the performance of commercial and industrial printers. It may be desirable in some printing environments to actively control the temperature and humidity in the printer to improve print quality and to prolong the life of some of the printer components.
-
FIG. 1 is a block diagram illustrating one example of a new printer internal climate control system. -
FIG. 2 illustrates one type of printer in which examples of the new climate control system may be implemented, -
FIG. 3 illustrates one example of a climate control system such as might be used in the printer ofFIGS. 2 . -
FIG. 4 is a block diagram illustrating one example for the bypass in the climate control systems shown inFIGS. 1 and 3 . -
FIG. 5 is a block diagram illustrating one example for the humidifier in the climate control systems shown inFIGS. 1 and 3 . - The same part numbers are used to designate the same or similar parts throughout the figures.
- A new climate control system for digital printing presses and other printers has been developed to help maintain desirable temperature and humidity conditions inside the printer while reducing the level of airborne contaminants in the printer environment. In one example of the new climate control system, warmer air from the printing area is treated to remove environmental contaminants by cooling the air to condense out contaminants in the incoming air stream. The treated air is reheated to the desired temperature before returning to the printing area. The system utilizes an economizer that exchanges heat between the warmer, untreated incoming air and the cooler, treated outgoing air to simultaneously pre-cool the untreated air and reheat the treated air, thus reducing the energy needed to clean and reheat the air. A bypass allows some of the cool, treated air to be diverted around the economizer to help regulate the temperature of the outgoing air. In this example, the system also includes a humidifier to selectively introduce clean water into the treated air stream as needed to maintain the desired humidity of the air returning to the printing area.
- “Cleaner” air and “dirtier” air are used in this document to describe relatively lesser or greater amounts of a contaminant in the air.
- Referring now to the block diagram of
FIG. 1 , one example of a new printerclimate control system 10 includes a first,economizer heat exchanger 12, asecond heat exchanger 14, ahumidifier 16 and abypass 18.Economizer heat exchanger 12, which exchanges heat between the warmer incoming air and the cooler outgoing air without mixing the two air streams, is also sometimes referred to in this document as an air-to-air heat exchanger. As described in more detail below with reference to the example shown inFIG. 3 , the components ofsystem 10 are arranged along anair flow path 20 extending from anintake 22 for receiving warmer, dirtier air from a printing area of the printer to anexhaust 24 for returning cooler, cleaner air to the printing area. In the embodiment shown inFIG. 1 ,climate control system 10 also includes afan 26 for moving air alongflow path 20. - In operation, the warmer, dirtier incoming air passes through
first heat exchanger 12 where it is cooled by cooler, cleaner outgoing air. The now cooler but still untreated incoming air then passes throughsecond heat exchanger 14 where it is cooled to a predetermined dew point temperature corresponding to a desired level of contaminants remaining in the air that will be returned to the printing area. For example, the ink and toner used in some printing processes generate unwanted vapors, sometimes referred to as “VOCs” (volatile organic compounds), VOC contaminants may be removed by cooling the air insecond heat exchanger 14 sufficiently to condense contaminant vapors. The dew point temperature selected to reduce contaminant levels will also establish the maximum level of humidity for the air leavingsecond heat exchanger 14. The liquid condensate is removed fromsecond heat exchanger 14 for disposal or recycling. - With continued reference to
FIG. 1 , having been treated to remove contaminants, the cool, cleaner air fromsecond heat exchanger 14 moves past or throughhumidifier 16.Humidifier 16 adds water selectively, as needed, to increase the humidity in the outgoing air stream to the desired level. Outgoing air passes through air-to-airfirst heat exchanger 12 where it is heated by the warmer incoming air. Some of the cool, treated air is diverted selectively pastfirst heat exchanger 12 thoughbypass 18, as needed, to adjust the temperature of the return air to the desired level. -
Climate control system 10 may also include a filter or other suitable de-mister 28 for removing liquid droplets from the air downstream fromsecond heat exchanger 14. In some operating conditions for aclimate control system 10, the air stream downstream fromsecond heat exchanger 14 may contain a fog or mist of residual contaminants. Under these operating conditions, it may be desirable to include a de-mister 28 to help prevent any such residual contaminant droplets from returning to the printing area. -
FIG. 2 illustrates one type of aprinter 30 in which examples of the new climate control system may be implemented.FIG. 3 illustrates one example of aclimate control system 10 for use inprinter 10.Printer 30 shown inFIG. 2 uses a liquid electro-photographic (LEP) printing process to form images on paper or other print media.LEP printer 30 is one example of a printer that can benefit from the use of a climate control system 10 (FIG. 3 ) to lower VOC levels and to help maintain the desired temperature and humidity in the printer's internal operating environment. - Referring to
FIG. 2 ,printer 30 includes amedia feed unit 32 with multiplemedia input trays stacks printing area 40 in theprint engine 42 from which they emerge as printed sheets conveyed to anoutput stacker 44. Althoughprinting area 40 andprint engine 42 are enclosed during printing operations, the forward part of the printer enclosure is omitted inFIG. 2 to showprinting area 40 andprint engine 42. -
Print engine 42 includes acharging device 46 for charging the surface of aphotoconductive drum 48. Aphoto imaging device 50 exposes selected areas ofdrum 48 to light in the pattern of the desired printed image. A thin layer of liquid toner is applied to the patterneddrum 48 through a series ofdeveloper units 52 to develop the latent image ondrum 48 into a toner image. The toner image is transferred fromdrum 48 to the outside surface of anintermediate transfer member 54. The toner image is then transferred to the print medium as the print medium passes through a nip betweenintermediate transfer member 54 and apressure roller 56, VOCs generated as toner carrier fluid evaporates offintermediate transfer member 54 are evacuated to acooling cabinet 58 housingclimate control system 10 at the back ofprinter 30. - Referring now to
FIG. 3 , hot, “dirty” air from printing area 40 (FIG. 2 ) is evacuated toclimate control system 10 incabinet 58 throughintake 22, for example at the urging of asuction blower 26. Air with a comparatively high concentration of VOCs fromprinting area 40 may reachintake 22 at about 42° C., for example. The warmer, untreated incoming air passes through air-to-air heat exchanger 12 to heat the cooler, treated outgoing air as described above with reference toFIG. 1 . Thus, the warmer incoming air is cooled as it passes throughfirst heat exchanger 12, for example to about 33° C. - The now cooler but still untreated air then passes through
second heat exchanger 14 where it is cooled to a predetermined dew point temperature corresponding to a desired level of VOCs remaining in the air that will be returned to print engine 42 (FIG. 2 ). In one example for anLEP printing press 30, the level of VOCs may be reduced to about 200 ppm by cooling the incoming air to about 10° C. atsecond heat exchanger 14. The liquid condensate containing water and toner carrier fluid that collects insecond heat exchanger 14 is removed for recycling or disposal. - In the example shown in
FIG. 3 , anoptional de-misting filter 28 is included in the flow path downstream fromsecond heat exchanger 14 to remove droplets that may form as fog in the cool air exitingsecond heat exchanger 14. For LEP printing applications, if ade-mister 28 is used, it is expected that de-mister 28 will be located as far as possible fromsecond heat exchanger 14. Any droplets of carrier fluid remaining in the air flow downstream fromsecond heat exchanger 14 tend to stick to one another and become larger, and thus easier to filter, farther fromheat exchanger 14. - The cool air from
second heat exchanger 14 moves past ahumidifier 16 tofirst heat exchanger 12.Humidifier 16 andheat exchanger 12 control the humidity and temperature of the air returning toprint engine 42 throughexhaust 24.Humidifier 16 adds water selectively, as needed, to increase the humidity in the outgoing air stream to the desired level. Outgoing air then passes through air-to-airfirst heat exchanger 12 where it is heated by the warmer incoming air. Some of the cool, treated air is diverted selectively pastfirst heat exchanger 12 thoughbypass 18, as needed, to adjust the temperature of the return air to the desired level, In one example for an LEP printer, the outgoing air atexhaust 24 should have a relative humidity of about 38% at a temperature of about 23° C. This temperature and humidity condition at climatecontrol system exhaust 24 allows the air to reach printing area 40 (FIG. 2 ) at the desired operating conditions, for example about 30% relative humidity at about 27° C. -
FIG. 4 is a block diagram illustrating one example forbypass 18 insystem 10. Referring toFIG. 4 ,bypass 18 includes anair flow conduit 60 bypassingheat exchanger 12, aflow control valve 62, and a thermostat or othersuitable control mechanism 64 operatively connected between the outgoing air flow andflow control valve 62. Thermostat 64 automatically adjusts the position ofvalve 62 based on the temperature of the outgoing air to control the flow of cool air throughbypass conduit 60, and maintain the desired temperature of air returning to the print engine. -
FIG. 5 is a block diagram illustrating one example forhumidifier 16 insystem 10. Referring toFIG. 5 ,humidifier 16 includes anatomizer 66 connected to awater reservoir 68 and a source ofpressurized air 70.Humidifier 16 also includes an airflow control valve 72 and a humidistat or othersuitable control mechanism 74 operatively connected between the outgoing air flow and flowcontrol valve 72.Humidistat 74 automatically adjusts the position ofvalve 72 based on the humidity of the outgoing air to control the amount of water sprayed into the flow of air throughsecond heat exchanger 14, and maintain the desired humidity of air returning to the print engine. - Locating
humidifier 16 upstream fromheat exchanger 12 as shown inFIG. 3 may be desirable in some printing environments to help ensure the water droplets will vaporize fully into the outgoing air stream, and thus minimize the risk of any water droplets reaching the print engine. However, in other printing environments it may be suitable to locatehumidifier 16 downstream fromheat exchanger 12. - The examples shown in the figures and described above illustrate but do not limit the invention. Other examples, embodiments and implementations are possible. Therefore, the foregoing description should not be construed to limit the scope of the invention, which is defined in the following claims.
Claims (14)
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Application Number | Priority Date | Filing Date | Title |
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PCT/EP2011/058477 WO2012159667A2 (en) | 2011-05-24 | 2011-05-24 | Printer internal climate control |
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US20140029970A1 true US20140029970A1 (en) | 2014-01-30 |
US8989617B2 US8989617B2 (en) | 2015-03-24 |
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US14/110,395 Active US8989617B2 (en) | 2011-05-24 | 2011-05-24 | Printer internal climate control |
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US (1) | US8989617B2 (en) |
EP (1) | EP2715456B1 (en) |
WO (1) | WO2012159667A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2020060528A1 (en) * | 2018-09-17 | 2020-03-26 | Hewlett-Packard Development Company, L.P. | A printing system |
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JP6069641B2 (en) * | 2014-04-30 | 2017-02-01 | コニカミノルタ株式会社 | Image forming apparatus |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5481339A (en) * | 1993-06-18 | 1996-01-02 | Xeikon Nv | Air conditioning device for a printer |
US7031633B2 (en) * | 2003-11-25 | 2006-04-18 | Eastman Kodak Company | Printing apparatus and method with improved control of humidity and temperature |
US20060117771A1 (en) * | 2004-11-10 | 2006-06-08 | Akira Fujimori | Image forming apparatus and air intake and exhaust system |
US8351815B2 (en) * | 2010-07-19 | 2013-01-08 | Hewlett-Packard Development Company, L.P. | Apparatus and method for reducing vapor emissions from a printer |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4343096A (en) | 1980-11-25 | 1982-08-10 | Bobst Champlain, Inc. | System for controlling emissions of a solvent from a printing press |
US5443007A (en) | 1994-04-11 | 1995-08-22 | Tri Service, Inc. | Printing machine with integrated temperature control system |
US6877247B1 (en) | 2000-08-25 | 2005-04-12 | Demoore Howard W. | Power saving automatic zoned dryer apparatus and method |
US6771916B2 (en) * | 2001-11-13 | 2004-08-03 | Nexpress Solutions Llc | Air quality management apparatus for an electrostatographic printer |
JP2003154727A (en) | 2001-11-19 | 2003-05-27 | Konica Corp | Ink jet printer |
US6643220B2 (en) * | 2002-03-21 | 2003-11-04 | Hewlett-Packard Development Company, L.P. | Vapor handling in printing |
US6941089B2 (en) | 2003-10-20 | 2005-09-06 | Xerox Corporation | Heating system for a developer housing |
US7850274B1 (en) * | 2010-04-30 | 2010-12-14 | Hewlett-Packard Development Company, L.P. | Printers and methods to reduce vapor emissions in printers |
-
2011
- 2011-05-24 EP EP11721062.5A patent/EP2715456B1/en not_active Not-in-force
- 2011-05-24 WO PCT/EP2011/058477 patent/WO2012159667A2/en active Application Filing
- 2011-05-24 US US14/110,395 patent/US8989617B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5481339A (en) * | 1993-06-18 | 1996-01-02 | Xeikon Nv | Air conditioning device for a printer |
US7031633B2 (en) * | 2003-11-25 | 2006-04-18 | Eastman Kodak Company | Printing apparatus and method with improved control of humidity and temperature |
US20060117771A1 (en) * | 2004-11-10 | 2006-06-08 | Akira Fujimori | Image forming apparatus and air intake and exhaust system |
US8351815B2 (en) * | 2010-07-19 | 2013-01-08 | Hewlett-Packard Development Company, L.P. | Apparatus and method for reducing vapor emissions from a printer |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020060528A1 (en) * | 2018-09-17 | 2020-03-26 | Hewlett-Packard Development Company, L.P. | A printing system |
Also Published As
Publication number | Publication date |
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WO2012159667A3 (en) | 2013-06-20 |
EP2715456B1 (en) | 2017-01-25 |
EP2715456A2 (en) | 2014-04-09 |
US8989617B2 (en) | 2015-03-24 |
WO2012159667A2 (en) | 2012-11-29 |
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